ATMOSPHERE HEAT TREATMENT EQUIPMENT

Transcription

1 ATMOSPHERE HEAT TREATMENT EQUIPMENT

2 WE ARE WORKING FOR YOU! ALL OVER THE WORLD! REMIX has been in the business of making heat treatment and foundry equipment since We started business in a small workshop near Świebodzin. Since then we have been dedicated to manufacturing of atmosphere heat treatment equipment. With time passing and new experiences being gained, in 1998 our Company started a new stage of manufacturing operation. The company moved its operations to Świebodzin. Production gained speed and soon REMIX became a leading company in Poland which designs, manufactures and delivers top quality metal heat treatment equipment, as well as foundry equipment. Furthermore, our Company provides modernization and overhaul services for heat treatment equipment and commercial hot-dip galvanizing. Our specialist personnel also sell spare parts for furnaces and auxiliary equipment as well as industrial crucibles and burners. The experienced gained throughout the years of company s operation translates into a comprehensive knowledge of the heat treating market and is also reflected in the skill of prompt reaction to Customers needs based on thorough recognition and fulfillment of the latter. Our potential was spotted by American manufacturer of heat treatment equipment AFC-HOLCROFT (AICHELIN Group). In 2012 we entered into a partnership agreement upon which REMIX S.A. acts a sole representative of AFC HOLCROFT for sales of their products on European markets. We have been engaged in a long-term cooperation with German company MAMMUT-WETRO GmbH. As exclusive representative in Poland we offer melting crucibles for non-ferrous metals and other foundry accessories by that manufacturer. The sales catalogue includes a broad range of crucibles and foundry accessories for melting and storing non-ferrous metal alloys, particularly alloys of aluminum, copper and zinc. Our business partners also include NOXMAT GmbH (AICHELIN Group) manufacturer of high efficiency energy-saving industrial gas burners, including the self-recuperative ones. We represent NOXMAT GmbH in the area of sales, assembly and start-up services, warranty and post-warranty service and spare parts. Being a well-integrated team we are looking into the future with optimism. By joint effort we do our best in order to meet the Customer s expectations in the quickest and best way possible. 1

3 HEAT TREATING PLANTS BASED ON CHAMBER FURNACES TYPE SQ Carburizing Carbonitriding Hardening Annealing Automotive industry Aircraft industry Bearing industry Machine engineering industry WORKING TEMPERATURE up to 1050 C WORKLOAD WEIGHT Series plants: kg Special designs: up to 8000 kg Furnace chamber brick lining made of top quality insulating materials of low thermal conductivity Chamber hearth built using SiC guides High capacity impeller to ensure appropriate mixing of atmosphere and temperature uniformity in the working space (+/- 5 C) Vertical mounting of heating elements in the furnace chamber, enclosed in tight, heat-resistant radiation tubes Oil bath impelling system based either on a pump system with spray nozzles to allow modulation of direction and intensity of oil flow, or based on external high capacity impellers mounted on the bath cover, to be chosen depending on technological requirements for the treated workpieces Automatic system of internal transport Fully automated treatment Versatile chamber furnace with vestibule and quench tank type SQ for heat treatment in atmospheres produced by atmosphere generator or made from Liquid Organic Compounds at temperature range from 760 C to 1050 C 2

4 PIT FURNACES Hardening Carburizing Nitriding Annealing Tempering Automotive industry Aircraft industry Bearing industry Machine engineering industry Mining industry Shipbuilding industry Wind power industry WORKING TEMPERATURE up to 1050 C WORKLOAD WEIGHT up to 3000 kg with retort with closed bottom 3000 kg with retort and fixed hearth and hydraulic lock Low ratio of investment to the size of workload processed Practically unlimited size and mass of workpiece designated for heat treatment Relatively low consumption of technological utilities in relation to workload being heat treated Gas tight retort High workload heating uniformity due to application of high capacity impeller and baffle system User-friendly operation and maintenance Availability of spare parts Electrically heated pit furnaces with controlled atmosphere for heat treatment in temperatures up to 1050 C 3

5 CONTINUOUS HEAT TREATMENT UNITS ROLLER HEARTH FURNACES Normalizing Spheroidizing annealing Hardening Tempering Preheating before plastic forming or hardening in moulding dies Bearing industry Automotive industry CAPACITY kg/h Low manufacturing cost with simultaneous meeting of top ISO standards and safety procedures defined in CE mark High flexibility in meeting specific requirements of individual contractors ( Custom Design ) Manufactured to license and know-how/references by AFC-Holcroft an AICHELIN Group company WORKING TEMPERATURE up to 950 C Roller hearth furnaces - continuous units for workload heating up to 950 C in air atmosphere 4

6 CONTINUOUS HEAT TREATMENT UNITS CONTINUOUS BELT FURNACES Carbonitriding Tempering Annealing Preheating before hardening Brazing Bearing industry Automotive industry Forging industry Defense industry Tool industry CAPACITY Depending on belt width: mm; up to 1500 kg/h Extremely short time of workload transfer from heat treatment to quench medium Continuous loading operation Attractive price compared to other units dedicated to continuous heat treatment WORKING TEMPERATURE up to 950 C Continuous belt furnaces for heat treating technologies up to 950 o C 5

7 CONTINUOUS HEAT TREATMENT UNITS PUSHER FURNACES Carburizing Carbonitriding Normalizing annealing Spheroidizing annealing Hardening Bearing industry Automotive industry Forging industry Defense industry Tool industry CAPACITY kg/h The most efficient unit dedicated to continuous heat treatment No workload weight limitations highest unit weight possible Very low investment/capacity ratio WORKING TEMPERATURE up to 1050 C Pusher furnaces the most efficient unit dedicated to continuous heat treatment 6

8 NITRIDING FURNACES Gas nitriding Commercial heat treatment plants Tool industry Automotive industry WORKING TEMPERATURE up to 600 C WORKLOAD WEIGHT Depending on useful space of a given unit: ʞʞ horizontal: 900 x 900 x 1200 mm 3t ʞʞ - vertical: 1000 x 2000 mm 4t Wide range of horizontal and vertical units Aggressive Nitriding lower nitriding potential low consumption of technological gases Furnace design allows for connection of preoxidation and post-oxidation treatment systems with application of oxidizing gases (water water vapour, N 2 O) Precise temperature uniformity throughout workload owing to powerful atmosphere impeller. Consequently, a uniform nitrided layer is obtained on entire surface of the workload. Gas tight retort High uniformity of workload heating due to application of high-capacity impeller and baffle system Nitriding furnaces designated for heat treatment in atmospheres generated from dissociated ammonia or nitrogen or in inert gas atmospheres in temperature range up to 600 o C 7

9 HEATING FURNACES: CHAMBER FURNACES / CAR BOTTOM CHAMBER FURNACES / ROTATING HEARTH FURNACES Heating before forging and stamping Heating before hardening Annealing Tempering after hardening Forging industry Machine industry Automotive industry Aircraft industry Power generating industry Shipbuilding industry WORKLOAD SIZE unrestricted Precision of heat treatment Chamber furnaces: unrestricted loading potential, concerning both the size and mass of workpiece Rotating hearth furnaces: continuity of workpiece transfer throughout heat treatment process WORKING TEMPERATURE up to 1300 C HT units that ensure precision of heat treatment within temperature range up to 1300 C 8

10 AUXILIARY EQUIPMENT LOADING/UNLOADING DEVICES, QUENCH BATHS, WASHERS AND DRYERS, ATMOSPHERE GENERATORS All heating and heat treatment technologies The heat treating furnaces we supply are accompanied by auxiliary equipment to create fully professional processing lines: Loading/unloading units Quench baths Washers and dryers Atmosphere generators Lifts and conveyors Ammonia dissociators The auxiliary equipment provided by REMIX is suitable for operation both with our own furnaces and furnaces made by our competitors, to create fully automated processing lines which meet technological and manufacturing requirements for the existing units.

11 HEAT TREATMENT LABORATORY TARGETS AND TASKS supporting customers in implementing new developments in heat treatment developing heat treatment technologies to suit new standards supporting marketing personnel in sales of products by REMIX S.A. supporting REMIX design engineering personnel in designing innovative heat treating solutions transfer of knowledge to the Company from friendly centres of science and agency in contacts with technological incubators and technological parks gathering experiences from service staff gained at installing new equipment or overhauling existing equipment produced by REMIX S.A. and other manufacturers following technical literature related to heat treatment and systematic collection of new knowledge creating new knowledge using own research and HR potential in cooperation with external research centres, including overseas partners expertise work for Customers of REMIX S.A. cooperation with external research institutions popularizing knowledge of heat treatment among REMIX S.A. personnel

12 PROCESSES AND PHENOMENA IN ATMOSPHERE HEAT TREATMENT FURNACES 1200 Temperature, C Carburizing Carbonitriding Nitrocarburizing Nitriding Brittleness II type Recrystallization Stress relief annealing Spheroidization Normalization Stress relief annealing Maximum preheating temperature before forging Oil quenching Full annealing + water quenching High tempering Brittleness I type Stabilizing (seasoning) Medium tempering Low tempering Freezing Subzero treatment -200 Deep cryogenic treatment DCT 0 0,1 0,2 0,3 0,4 0,5 0,6 0,7 0,8 0,9 1,0 1,1 1,2 1,3 1,4 1 5 Carbon content, %C

13 STEEL STRUCTURE AFTER HEAT TREATMENT IN ATMOSPHERES ÌÌ Structure of C45 steel after oil quench, magnification 3500x ÌÌ Ferritic-pearlitic structure of C45 steel, magnification 5000x ÌÌ Low carbon steel brazed with copper ÌÌ Steel 321 brazed with Cu following bright annealing, cross-section Ì Ì Ductile fracture of steel in crankshaft strength test specimen, magnification 300x Ì Ì Ductile fracture of steel in crankshaft strength test specimen, magnification 15x Pictures - Dr Eng. Jerzy Stodolny. JSM Scanning Microscope Photographs taken at the Heat Treatment Laboratory of REMIX S. A.

14 REMIX S. A. ul. Poznańska Świebodzin Poland tel fax